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El Paso County Sheriff's investigators are speaking to Kaufman County, Texas law enforcement officials after a prosecutor and his wife were killed in an incident similar to the shooting of Tom Clements, head of the Colorado Department of Corrections.

"We have nothing to indicate that they are connected but just based on a (District Attorney) being involved we figured it was worth our while to reach out," Sgt. Joe Roybal, El Paso County Sheriff's Department spokesman, said Sunday.

Kaufman County District Attorney Mike McLelland and his wife Cynthia were found dead in their home about 20 miles from Dallas on Saturday.

The killings came less than two weeks after Clements was shot dead when he answered his front door on March 19.

Authorities believe Evan Spencer Ebel, a former Colorado inmate and white supremacist, killed Clements before dying in a shootout with Texas deputies on March 21.

Following the murder of Kaufman County Assistant DA Mark Hasse two months ago, McLelland reportedly said that he carried a gun everywhere he went and took extra care when answering the door at his home.

El Paso County investigators communicating with their Texas counterparts by phone. "There is nothing substantial that would require our investigator to go down there personally," Roybal said.